The Tadrart Acacus is the reason many travellers know Ghat's name. This broken desert mountain range east of town is a UNESCO-listed rock-art landscape, with paintings and engravings spread through shelters, cliffs, and narrow wadis.
The scenery is powerful even before you see the art: dark sandstone, natural arches, isolated towers, and sand-filled corridors that change colour through the day. Visits require a specialist local guide and a desert vehicle. The sites are fragile and have suffered vandalism, so respectful behaviour is not just etiquette here; it is preservation.